Lighting Issues

Need some help with mapping, lighting to be exact. Whenever I make a building, any light that enters it makes the inside look like this:

It always bugs me, and I’ve been trying to find out how to prevent it. DOes anyone know how?

-final will fix that

It’s not like it’s a huge issue during test compiles.

Ah, that’s the problem. Thanks for the help.

I gave a Mapping King as I think it’s a suitable rating for anybody who helps someone, not just for pretty pictures.